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[ RACE.2026 ] 🇨🇱 Santiago, Chile

Maratón de Santiago Training Plan

26 April 2026

Santiago runs through the Chilean capital in April - autumn there - on a flat, fast course with the Andes standing at the end of the avenues. Southern-hemisphere runners get their Valencia; visitors get a PB course with a mountain backdrop.

What the course is actually like

The route tours central Santiago - the civic quarter around the Plaza de la Constitucion, avenues along the Mapocho river, and the Providencia district - on a profile that is flat to gently rolling, with nothing sustained enough to plan around. The city sits at a little over 500 metres of altitude: high enough to mention, far too low to matter.

Wide avenues and long straights give the course its speed; the Andes, visible down the cross-streets on clear autumn days, give it its postcard. As South American marathons go, it is the settled, rhythm-friendly one - the tactical opposite of racing at Bogota's altitude.

How to train for it

Standard fast-course preparation applies: goal-pace volume, even-split discipline, strength for the repetitive flat load. The April date inverts the northern calendar - Chileans build through summer heat for an autumn race, while northern visitors arrive off their winter base, usually fitter than they feel.

If you are travelling from the northern hemisphere, respect the small things: the seasons flip, the race-morning temperature will resemble your October, and jet lag from most of Europe or North America is mild to none - one of the quiet advantages of racing down a longitude instead of across them.

Weather and what to expect on the day

April is Santiago's autumn: typically cool mornings warming to mild, comfortable days - reliable racing weather, with the summer's heat gone and the winter's valley smog not yet settled. Clear editions serve the mountain views the race is photographed for.

The event is the centrepiece of Chile's running calendar and the field skews motivated - expect organised pace groups and serious club sections. Run it like the fast course it is: nothing about the day should surprise a runner who prepared for even splits and an honest goal.

Which distance are you running?

Official site: www.aims-worldrunning.org/races/690.html

// SAMPLE BUILD

What a 12-week Marathon build looks like

A typical outline for Maratón de Santiago. Your actual plan is built around your level, schedule and goal time - this shows the shape of the training.

WKPhaseVolumeKey session
01Base40 kmLong run · 16 km
02Base44 kmLong run · 18 km
03Base48 kmTempo · 2×15 min
04Base42 kmLong run · 16 km
05Build50 kmIntervals · 6×800 m
06Build54 kmLong run · 26 km
07Build46 kmTempo · 3×15 min
08Build58 kmLong run · 29 km
09Peak62 kmLong run · 32 km
10Peak56 kmIntervals · 6×1 km
11Taper42 kmLong run · 18 km
12Taper28 kmRace day

This is a sample - your plan adapts to your level, schedule and goal, free. Build my plan

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// HOW IT WORKS

How Pace Builder works

Tell us about you in 2 minutes. We generate a 4-week plan that adapts as you log your runs and counts down to your race day.

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